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Original Article

Factors associated with the efficacy of miniprobe endoscopic ultrasonography after conventional endoscopy for the prediction of invasion depth of early gastric cancer

, ORCID Icon, , , , & show all
Pages 864-869 | Received 03 Jan 2017, Accepted 28 Mar 2017, Published online: 22 Apr 2017
 

Abstract

Background: This study aimed to compare the accuracy of conventional endoscopy (CE) and endoscopic ultrasonography (EUS) to predict tumor invasion depth and to determine factors associated with higher accuracy of additional miniprobe EUS after CE.

Methods: Between May 2009 and February 2015, 273 lesions in 266 patients were subjected to miniprobe EUS after CE and curative treatment for well-to-moderately differentiated early gastric cancer (EGC). We reviewed preoperative CE and EUS findings and compared them to the pathologic findings.

Results: The accuracy of CE and EUS to estimate the invasion depth of EGCs was 78.8% (215/273) and 83.9% (229/273) (p = .124), respectively. Using multivariate analysis, irregular depressed surface (odds ratio [OR] 8.11; 95% confidence interval [CI]: 2.79–23.53), fold change (OR 7.22; 95% CI: 2.33–22.38), size >2 cm (OR 2.72; 95% CI: 1.15–6.42) and ulcer scar (OR 2.64; 95% CI: 1.07–6.49) were associated with the higher accuracy of EUS than that of CE.

Conclusions: Routine assessment using miniprobe EUS did not increase the accuracy of predicting invasion depth, compared to CE. However, EUS could be helpful in the treatment decision-making process for EGCs with lesions having irregular surfaces, fold change, size >2 cm, or ulcer scar.

Disclosure statement

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of this article.

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